Porthmadog Weather in December

December in Porthmadog typically sees daytime highs of 9°C (48°F) and nighttime lows of 4°C (39°F). As the wettest month of the year, expect more rainfall than other months. It falls within the winter season.

Rainfall in Porthmadog in December

In this month, the heaviest downpours of the year are not uncommon. Carrying a poncho might be your best bet to stay dry. Historically, approximately 21 days this month are expected to have rain, averaging 171 mm (6.7 in). This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.

Temperature in Porthmadog in December

Expect highs of 9°C (48°F) in Porthmadog in December, with nights dropping to around 4°C (39°F). The month of December belongs to the winter season. Even at the warmest part of the day, temperatures stay low. Dressing warmly from the start is the sensible approach. With lows around 4°C (39°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Sunshine in Porthmadog in December

This month sees fewer sunny days, with about 26 hours of sunshine, perfect for those who enjoy cooler temperatures.

December in Porthmadog has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.

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• January
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For a detailed overview over the year and the best time to visit the United Kingdom, check out our Porthmadog's climate page.

Porthmadog Temperature in December

Min Temperature 4°C (39°F)  

Max Temperature 9°C (48°F)  

Chance of Rain 70%  

Precipitation 171 mm (6.7 in)  

Rainy days 21 days  

Sunshine 26 hours *  

Percentage Sunshine *  

* Data from: Bala, the United Kingdom (35 KM, 22 Miles).

What to Wear in Porthmadog in December

Dress warmly and in layers for your trip to Porthmadog in December. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. It's going to pour! Pack a good poncho and prepare for very wet conditions. You can probably leave your sunglasses at home, because sunny days are pretty rare this month.

What To Do in Porthmadog in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

4/10

Cycling

4/10

Walking

4/10

Camping

3/10

Outdoor sports

4/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United Kingdom, check out our Porthmadog's climate page.

More climate data for Porthmadog

Temperature Rainfall Sunshine

See the full Porthmadog climate overview or explore weather in the United Kingdom.